indexo.dev

numericalinfinities.com

.com crawl

First seen 2026-04-17 · Last seen 2026-05-12 · ok HTTP/1.1 200 4943 ms crawled 2026-05-12

US · 199.34.228.47 · AS27647 Weebly, Inc.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
NUMERICAL INFINITIES - Home
Description
An introduction to the Arithmetic of Infinity for school teachers and students
Language
en_GB

Open Graph

url
http://www.numericalinfinities.com/
title
NUMERICAL INFINITIES
site name
NUMERICAL INFINITIES
description
An introduction to the Arithmetic of Infinity for school teachers and students

Technology

CDN
Cloudflare

Third-party hosts loaded (2)

  • cdn2.editmysite.com×8
  • cdn11.editmysite.com×5

Registration

Registrar
Register.com - Network Solutions, LLC
Created
2018-06-22
Expires
2030-06-22 1494 days left
Updated
2025-06-09
Name servers
  • dns1.register.com
  • dns2.register.com

DNS records live

NS
  • dns051.a.register.com
  • dns176.d.register.com
  • dns229.b.register.com
  • dns243.c.register.com
MX
  • 1 aspmx.l.google.com
  • 10 alt3.aspmx.l.google.com
  • 10 alt4.aspmx.l.google.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com

Email authentication weak

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificates

Loading certificate

HTTP security headers

Header hygiene 35/100 Checked over plain HTTP: http://www.numericalinfinities.com/

findings
  • checked over plain HTTP
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (2)

Linked from (2)